answer the following questtions

Chemistry
Tutor: None Selected Time limit: 1 Day

May 20th, 2015

27. Water since water is the only chemical compound. The rest are elements

28.Strontium and Chlorine, since this is the only metal nonmetal compound

29.It is Cu2O since these copper atoms have one valence electron each.

Hope this helps

May 20th, 2015

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